I just downloaded the digital pack! The images are fantastically detailed and have absolutely amazing definition.
I didn't get in on the kickstarter in time, and have been checking back to see if stuff was ready to be sold to the public. I checked yesterday, and the site now has a button saying "Pre-order Store Now Open!" (link) They are still working on things; June is their current estimated date. Ok, cool. I signed up for the "Digital Add-On" and gave my payment info ... and it offered me the downloads right then and there!!
I did not expect that and am still chortling over it. :-D
Anyways, the important point of this post is (a) pre-orders now open for non-backers, and (b) the digital pack is available for download.
Woo!!
(edit p.s.: The wiki is not affiliated with the kickstarter, and neither am I. The videos from Mercedes and Larry about it are official.)